Best Time to Fly ORD to LAF: On-Time Stats by Hour & Airline
Chicago O'Hare International → Purdue University
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 68.4% of Chicago (ORD) to Lafayette (LAF) flights arrived on time (567 scheduled flights). That is 9.2 points below the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
November has been the best month (80% on time) and Saturday the weakest day of the week (55%).
4.1% of flights were cancelled, versus 1.8% nationally.
ORD to LAF on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 68.4% | 110 min | 4.1% | 567 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ORD to LAF
On-time arrival % by scheduled departure hour (local time), 567 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12pm–1pm | 74.3% | 3.9% | 232 |
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | Limited data | 24 | |
| 9pm–10pm | 66.9% | 3.5% | 289 |
| 10pm–11pm | Limited data | 21 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ORD to LAF
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 10 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 27 | ||
| Summer peak (Jun 15 - Aug 15) | 69.9% | -0.2 pts | 4.5% | 88 |
| All other days | 70.0% | — | 3.6% | 442 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).